CN219641496U - In-situ pressure calibration device in diamond anvil cell press - Google Patents

Abstract

The utility model discloses an in-situ pressure calibration device in a diamond anvil press, which comprises a base, wherein a press top plate is arranged on the base, the press top plate and the base are both provided with mutually symmetrical diamond anvils, a pressure test plate is clamped between the two diamond anvils, the pressure test plate can convert pressure into an electric signal, and a second hydraulic pump is arranged on the upper side of the press top plate.

Description

In-situ pressure calibration device in diamond anvil cell press

Technical Field

The utility model relates to the field of diamond anvil cell, in particular to an in-situ pressure calibration device in a diamond anvil cell press.

Background

The existing diamond anvil-cell press in-situ pressure calibration device has a complex structure and certain defects in use, the diamond anvil-cell press is required to be calibrated in pressure before being used, the standard pressure device and the diamond anvil-cell press are used for pressure comparison, so that the calibration is performed, and the pressure is converted into an electric signal through a high-strength pressure chip, so that the comparison can be performed, and the novel diamond anvil-cell press in-situ pressure calibration device is required to replace the existing diamond anvil-cell press in-situ pressure calibration device;

for this, the patent with publication number CN111982736B discloses a diamond butt anvil press with temperature and in-situ pressure calibration and a pressure calibration method, which comprises a pressure conduction module, a pressure calibration module and a heating experiment module, wherein the correlations of PJ1, PJ2, PJ3 … … PJn-1, PJn, PB1, PB2, PB3 … … PBn-1 and PBn are fitted according to the equal total pressure in the coaxial axial direction, so as to obtain the corresponding fitting relation of PJ and PB, namely the pressure value of the heating experiment module can be obtained according to the calibration pressure value of the pressure calibration module. The utility model solves the problem that the ruby fluorescence method can not directly carry out in-situ calibration of high-temperature pressure in the pressure cavity under the high-temperature condition, can provide accurate real-time pressure parameters for measuring high-temperature high-pressure physical properties in the diamond anvil cell, and ensures the accuracy of analysis of high-temperature high-pressure experimental results;

the temperature in-situ pressure calibration diamond anvil cell press and the pressure calibration method in the above cases do not solve the problem of rapid and simple pressure calibration of the diamond anvil cell press.

Disclosure of Invention

The utility model aims to provide an in-situ pressure calibration device in a diamond anvil cell press, which aims to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pressure calibration device in diamond is to anvil cell press, includes the base, be equipped with the press roof on the base, the press roof with the base all is equipped with the diamond anvil cell of mutual symmetry, two press the clamp between the anvil cell of diamond has the pressure test board, the pressure test board can be with pressure conversion to the signal of telecommunication, press roof upside is equipped with the second hydraulic pump.

The hydraulic press is characterized in that the base is provided with a press mechanism, the press mechanism comprises four positioning columns fixedly connected with the upper end face of the base, four positioning shells are fixedly connected with the lower end face of the press top plate, the positioning shells are in sliding connection with the positioning columns, the positioning shells and the positioning columns are kept relatively static when not stressed, the base and the press top plate are all provided with sliding grooves, a sliding block is connected in the sliding grooves in a sliding manner, the sliding block is in threaded connection with a rotating shaft, the base and the front end face of the press top plate are fixedly connected with a motor, the motor is in power connection with the rotating shaft, the rotating shaft is in rotary connection with the press top plate, so that the sliding block can be driven to move, a calibrator is fixedly connected on the sliding block, the sliding block is provided with a boss, the diamond anvil is fixedly connected with the boss, so that the pressure test plate can be pressurized, the pressure is converted into an electric signal, the left side of the upper end face of the base is fixedly connected with a first hydraulic pump, the first hydraulic pump is arranged in the base, the first hydraulic pump is in front and the rear symmetrical cavity and is connected with the second hydraulic pump, and the first hydraulic pump is in a hydraulic pump is connected with a hydraulic pressure pipe, and the other end face of the hydraulic pump is fixedly connected with a hydraulic pressure rod.

The beneficial is that be equipped with calibration mechanism on the base, calibration mechanism includes the support that is equipped with directly over the press roof, the support is equipped with a plurality of mounting holes to can fix the support on ground or mesa, second hydraulic pump fixed connection with the support up end, second hydraulic pump power is connected with and passes the second hydraulic stem of support, thereby can be under standard pressure give the pressure test board carries out the pressure test, thereby can carry out the pressure calibration to the diamond anvil cell press.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model can drive the diamond anvil to squeeze the pressure test plate through the first hydraulic pump, the base and the press top plate so as to generate an electric signal, thereby carrying out the in-situ pressure test of the diamond in the anvil press.

Drawings

FIG. 1 is a three-dimensional schematic of the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view in section A-A of FIG. 2;

FIG. 4 is a schematic view in section B-B of FIG. 2;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

FIG. 6 is a three-dimensional schematic of a press mechanism of the present utility model;

FIG. 7 is a three-dimensional schematic of a calibration mechanism of the present utility model.

In the figure: 100. a base; 101. a press top plate; 102. positioning a shell; 103. positioning columns; 104. a motor; 105. a diamond anvil; 106. a pressure test plate; 107. a first hydraulic pump; 108. a first hydraulic lever; 109. a second hydraulic pump; 110. a bracket; 111. a mounting hole; 112. a second hydraulic lever; 113. a rotating shaft; 114. a sliding groove; 115. a sliding block; 116. a boss; 117. a hydraulic pipe; 118. a hydraulic chamber; 119. a calibrator; 120. a press mechanism; 121. and a calibration mechanism.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1:

referring to fig. 1-7, the present utility model provides a technical solution: an in-situ pressure calibration device in a diamond anvil cell press comprises a base 100, wherein a press top plate 101 is arranged on the base 100, the press top plate 101 and the base 100 are respectively provided with a diamond anvil 105 which are symmetrical to each other, a pressure test board 106 is sandwiched between the two diamond anvils 105, the pressure test board 106 can convert pressure into an electric signal, and a second hydraulic pump 109 is arranged on the upper side of the press top plate 101.

The base 100 is provided with a press mechanism 120, the press mechanism 120 comprises four positioning columns 103 fixedly connected with the upper end surface of the base 100, the lower end surface of the press top plate 101 is fixedly connected with four positioning shells 102, the positioning shells 102 and the positioning columns 103 are in sliding connection, so that the positioning shells are kept relatively static when not stressed and can move mutually when stressed, the base 100 and the press top plate 101 are provided with sliding grooves 114, a sliding block 115 is in sliding connection with the sliding grooves 114, the sliding block 115 is in threaded connection with a rotating shaft 113, the front end surfaces of the base 100 and the press top plate 101 are fixedly connected with a motor 104, the motor 104 is in dynamic connection with the rotating shaft 113, the rotating shaft 113 is in rotational connection with the press top plate 101, and can drive the sliding block 115 to move, a calibrator 119 is fixedly connected onto the sliding block 115, so that the calibration can be performed, the sliding block 115 is provided with a boss 116, the diamond anvil 105 and the boss 116 are fixedly connected with each other, so that the electrical signal of the pressure test plate 106 can be converted into an electrical signal, the first side of the base 100 is provided with a first hydraulic pump and a second hydraulic pump 108, the other end surface is fixedly connected with a first hydraulic pump 118, and a second hydraulic pump 118 is fixedly connected with the front end surface of the base 100, and the first hydraulic pump 108 is fixedly connected with the other end surface of the first hydraulic pump 118;

be equipped with calibration mechanism 121 on the base 100, calibration mechanism 121 includes the support 110 that is equipped with directly over the press roof 101, support 110 is equipped with a plurality of mounting holes 111 to can fix support 110 on ground or mesa, second hydraulic pump 109 fixed connection with support 110 up end, second hydraulic pump 109 power is connected with and passes support 110's second hydraulic stem 112, thereby can be under standard pressure for pressure test board 106 carries out the pressure test, thereby can carry out the pressure calibration to the anvil press for the diamond.

Working principle:

firstly, the motor 104 is started, so that the rotating shaft 113 is driven to rotate, the sliding block 115 is driven to slide in the sliding groove 114 until the aligners 119 are aligned with each other, so that positioning is performed, then the diamond anvil-cell press is subjected to pressure test, the first hydraulic pump 107 is started, hydraulic oil flows into the hydraulic cavity 118 from the hydraulic pipe 117, the first hydraulic rod 108 is driven to move, the press top plate 101 is driven to move, the sliding block 115 is driven to move, the diamond anvil 105 is driven to press the pressure test plate 106, the pressure test plate 106 generates a current signal, and a graph of the pressure and the current signal is obtained.

Then, the first hydraulic pump 107 is closed, so that the press top plate 101 can freely move, and the second hydraulic pump 109 is started, so that the second hydraulic rod 112 is driven to move, the press top plate 101 is driven to move, the diamond anvil 105 is driven to apply pressure to the pressure test plate 106 under the condition of standard pressure, the curve graph of pressure and current under the standard pressure is generated, and the curve graph is compared with the curve graph of the diamond anvil press, so that calibration is performed.

It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed embodiments. Other embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the disclosed system. It is intended that the specification and examples be considered as exemplary only, with a true scope being indicated by the following claims and their equivalents.

Claims (7)

1. The utility model provides a diamond is to anvil cell press internal site pressure calibration device, includes base (100), be equipped with press roof (101), its characterized in that on base (100): the press top plate (101) and the base (100) are both provided with mutually symmetrical diamond press anvils (105), a pressure test plate (106) is clamped between the two diamond press anvils (105), the pressure test plate (106) can convert pressure into an electric signal, and a second hydraulic pump (109) is arranged on the upper side of the press top plate (101).

2. The device for calibrating in-situ pressure in a diamond anvil-cell press according to claim 1, wherein: four positioning columns (103) are fixedly connected to the upper end face of the base (100), four positioning shells (102) are fixedly connected to the lower end face of the top plate (101) of the press, and the positioning shells (102) are slidably connected with the positioning columns (103).

3. The device for calibrating in-situ pressure in a diamond anvil-cell press according to claim 2, wherein: the base (100) and the press top plate (101) are both provided with sliding grooves (114), sliding blocks (115) are connected in the sliding grooves (114) in a sliding mode, the sliding blocks (115) are connected with rotating shafts (113) in a threaded mode, motors (104) are fixedly connected to the front end faces of the base (100) and the press top plate (101), the motors (104) are in power connection with the rotating shafts (113), and the rotating shafts (113) are in rotary connection with the press top plate (101).

4. A diamond anvil cell press in situ pressure calibration apparatus according to claim 3, wherein: and the sliding block (115) is fixedly connected with a calibrator (119).

5. The device for calibrating in-situ pressure in a diamond anvil-cell press according to claim 4, wherein: the sliding blocks (115) are provided with protruding platforms (116), the diamond anvil (105) is fixedly connected with the protruding platforms (116), and can press the pressure test plate (106) to convert the pressure into an electric signal.

6. The device for calibrating in-situ pressure in a diamond anvil-cell press according to claim 5, wherein: the hydraulic press is characterized in that a first hydraulic pump (107) is fixedly connected to the left side of the upper end face of the base (100), two hydraulic cavities (118) which are symmetrical front and back are arranged in the base (100), a first hydraulic rod (108) which is fixedly connected with the lower end face of the press top plate (101) is connected to the other end of the hydraulic cavity (118) in a sliding mode, and a hydraulic pipe (117) is fixedly connected between the first hydraulic pump (107) and the hydraulic cavities (118).

7. The device for calibrating in-situ pressure in a diamond anvil-cell press according to claim 6, wherein: be equipped with on base (100) and mark mechanism (121), mark mechanism (121) include support (110) that are equipped with directly over press roof (101), support (110) are equipped with a plurality of mounting holes (111), second hydraulic pump (109) fixed connection with support (110) up end, second hydraulic pump (109) power connection have pass second hydraulic stem (112) of support (110).